it´s over now! i fixed it....
i had posted about this in the 777 thread but i figure i´d best leave an anwer here for future reference...
it was just a matter of adding an animation entry into that big box in the animations tab in Panda... making sure that such entry matches the range of frames you´re working with (1-200 for FS)... then set the options to Move, Scale & Rotate; and Key Frames in the animation tab and Open; Linear Position and Include animation options in the X file settings tab....
you can know if it worked even before testing it in FS (saves lotsa time) by checking the Output tab in MakeMDL... look for your animated parts in the list that will be there after exporting, you will find an Anim="1" tag next to it if it worked
also, to avoid the FOUND SCALE ANIMATION error, make sure that NONE of your animated parts has SCALE keys (those keyframes in the timeline with multiple colors have scale keys inside, set filters so you see just the scale frames and DELETE THEM), those are NOT supported by MakeMDL
hope this can be of any help to someone
Moach